Azure Blockchain Service is a fully-managed ledger service in Azure. It enables users to grow and operate blockchain networks at scale with simplified network formation, management, and governance. By eliminating the burden of building, managing, and growing the underlying network, Azure Blockchain Service empowers customers to focus on what matters to them—business logic and app development.

More details about the service are available in the Azure Blockchain documentation.  If you have a technical issue, please open a post in the MSDN Blockchain forum.